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【VIP供应商】武汉尧成友好科技有限公司:香精、香料、有机硒化合物研发、生产
【VIP供应商】武汉尧成友好科技有限公司:香精、香料、有机硒化合物研发、生产
1,3-丙烷磺内酯、2-巯基苯并咪唑-5-磺酸钠二水合物、2-巯基噻唑啉、N,N-二甲基-二硫甲酰胺丙磺酸钠、聚二硫二丙烷磺酸钠、异硫脲丙基硫酸盐、3-巯基-1-丙磺酸钠、丙烷磺酸吡啶盐、3-(苯并噻唑-2-巯基)丙烷磺酸钠
化学加公众号 06-25
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南京大学化学学院Nature!西安交通大学Nature!
南京大学化学学院Nature!西安交通大学Nature!
西安交通大学金属材料强度全国重点实验室研制出2000至2400 ℃超高温区承载的塑性合金,该研究成果在线发表于《自然》(Nature),为新一代超高温合金的开发提供了新思路。
化学加公众号 06-25
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【ChemComm精选】纳米医学与生物检测前沿合集
【ChemComm精选】纳米医学与生物检测前沿合集
文内扫码阅读原文
RSC英国皇家化学会公众号 06-25
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青岛大学许长海团队: 创新策略实现波长/时序可编程多色余辉
青岛大学许长海团队: 创新策略实现波长/时序可编程多色余辉
杨书康, 肖国威*, 许长海* et al
RSC英国皇家化学会公众号 06-25
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FSHW | 西兰花抗血栓新机制:莱菔硫烷通过CD36降低高脂血症血小板高反应性
FSHW | 西兰花抗血栓新机制:莱菔硫烷通过CD36降低高脂血症血小板高反应性
FSHW | 西兰花抗血栓新机制:莱菔硫烷通过CD36降低高脂血症血小板高反应性
食品科学杂志公众号 06-25
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《食品科学》:福建省农业科学院李怡彬研究员等:干银耳复水方式对凉拌预制菜品质及水分迁移的影响
《食品科学》:福建省农业科学院李怡彬研究员等:干银耳复水方式对凉拌预制菜品质及水分迁移的影响
汤葆莎、吴俐、李怡彬*等以干银耳为对象,系统探究不同复水工艺对其品质的影响。研究设置不同温度(70、100 ℃)、时间(3、4、5 min)的HWR及超声联合热水复水(USHWR)等处理,通过质构仪、色差计、低场核磁共振(LF-NMR)仪、气相色谱-质谱联用仪等手段。
食品科学杂志公众号 06-25
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《食品科学》:浙江省海洋水产研究所何鹏飞工程师等:氯化胆碱-山梨醇天然低共熔溶剂对冻藏南美白对虾品质的维持作用
《食品科学》:浙江省海洋水产研究所何鹏飞工程师等:氯化胆碱-山梨醇天然低共熔溶剂对冻藏南美白对虾品质的维持作用
包钰菡、何鹏飞*、陈雪昌等研究以山梨醇为HBD、氯化胆碱为HBA制备NADES并作为抗冻剂,以南美白对虾为实验对象,通过测定冻藏期间南美白对虾的解冻损失率、pH值、硫代巴比妥酸反应物(TBARS)值等指标变化。
食品科学杂志公众号 06-25
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《食品科学》:陕西科技大学曹云刚教授等:低钠复合盐体系中L-赖氨酸和L-精氨酸对肌原纤维蛋白结构及凝胶性能的影响
《食品科学》:陕西科技大学曹云刚教授等:低钠复合盐体系中L-赖氨酸和L-精氨酸对肌原纤维蛋白结构及凝胶性能的影响
武炎楠、乌悦和曹云刚*等人选择焦磷酸钠(PP)作为多聚磷酸盐的典型代表,系统探究低钠复合盐条件下(0.4 mol/L,NaCl与KCl浓度比为2∶1),与1 mmol/L PP相比,不同浓度的L-Lys(1、3、5 mmol/L)和L-Arg(1、3、5 mmol/L)对MP结构特性、溶解性。
食品科学杂志公众号 06-25
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你以为的“树汁”,其实是虫子的“下午茶”——还是喝过的那种
你以为的“树汁”,其实是虫子的“下午茶”——还是喝过的那种
最近不少上海市民走在路上,总感觉天上在下一场奇怪的“雨”。不是普通的雨水,而是一滴一滴黑色黏答答、油乎乎、带
中科院物理所公众号 06-25
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火山喷发,CO2却在下降?
火山喷发,CO2却在下降?
在我们的直觉里,火山是温室效应的同谋。它向天空喷射二氧化碳和其他火山物质,熔岩覆盖大地,高温灼烧海洋,最终让
中科院物理所公众号 06-25
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当两个黑洞相互“撞车”,宇宙会发生什么?
当两个黑洞相互“撞车”,宇宙会发生什么?
1理论奠基黑洞这一概念的理论基础,是在一百多年前,由爱因斯坦建立起来的。当时,爱因斯坦的想法是:能否用统一的
中科院物理所公众号 06-25
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文献解读 | 中国农业大学张福锁院士团队综述中国农业四十年:从“多施肥增产”到“提效率稳产”
文献解读 | 中国农业大学张福锁院士团队综述中国农业四十年:从“多施肥增产”到“提效率稳产”
关注农业科学微平台,了解农业科学领域科研、资讯新动态
农业科学微平台公众号 06-25
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JIA | 机器学习驱动有机固废堆肥氮素损失预测与调控策略研究
JIA | 机器学习驱动有机固废堆肥氮素损失预测与调控策略研究
Journal of Integrative Agriculture(《农业科学学报(英文)》, JIA)
农业科学微平台公众号 06-25
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【Org. Lett.】北京大学焦阳课题组:无金属、高化学选择性的还原脱氯新策略
【Org. Lett.】北京大学焦阳课题组:无金属、高化学选择性的还原脱氯新策略
本文提出了一种无过渡金属的还原脱氯新策略。以经典的汉斯酯为唯一还原剂,在紫外光照或加热条件下即可实现高效转化。
CBG资讯公众号 06-25
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西安交通大学郭丽娜课题组:酮碳环编辑:自由基介导的双向C–C键断裂/偶联策略
西安交通大学郭丽娜课题组:酮碳环编辑:自由基介导的双向C–C键断裂/偶联策略
该研究报道了一种基于自由基介导的双向C−C键断裂的通用策略。
CBG资讯公众号 06-25
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重庆师范大学田甜、付文升团队和兰州大学丁勇团队合作Appl. Catal. B: Environ.:BiVO₄双光电极光电化学水氧化与氧还原耦合制备H₂O₂
重庆师范大学田甜、付文升团队和兰州大学丁勇团队合作Appl. Catal. B: Environ.:BiVO₄双光电极光电化学水氧化与氧还原耦合制备H₂O₂
本文报告了一种碳和氮掺杂策略,以调节Mo-BiVO₄表面FeCoOₓ助催化剂的电子结构,成功合成了CN-FeCoOₓ/Mo-BiVO₄光阳极。
CBG资讯公众号 06-25
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【ACS Catal.】南京大学闫世成教授:催化剂重构至高能态主导有机电氧化过电势的起源
【ACS Catal.】南京大学闫世成教授:催化剂重构至高能态主导有机电氧化过电势的起源
本文以经典的Ni(OH)₂/NiOOH模型体系为研究对象,通过对比催化剂结构演化活化能(Qs)与目标分子反应活化能(Qm),揭示了以往被忽视的过电势来源:催化活性物相生成的电压需求远大于目标分子电氧化所需电压。
CBG资讯公众号 06-25
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广州医科大学黄建强课题组Angew:非对映选择性的环丙烯-联烯交叉复分解反应制备跳跃烯-联烯
广州医科大学黄建强课题组Angew:非对映选择性的环丙烯-联烯交叉复分解反应制备跳跃烯-联烯
该工作首次实现了环丙烯-联烯交叉复分解,为跳过烯-联烯类化合物的立体选择性合成提供了全新且高效的途径。
CBG资讯公众号 06-25
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A qualitative study on fertility preferences and barriers to fertility autonomy in rural Uganda among women with an unmet need for family planning.
IF 2.1 3区 医学 Q2 PUBLIC, ENVIRONMENTAL & OCCUPATIONAL HEALTH Pub Date : 2026-12-31 DOI: 10.1080/17441692.2026.2635898

Women's autonomy in fertility decision-making is essential for improved health and social outcomes. Guided by the social-ecological model, this investigation explores multilevel influences on the fertility autonomy of women with an unmet need for family planning in rural Uganda. We conducted four focus groups with men and women (n = 26), and 15 key informant interviews with community leaders and individuals involved in the provision of family planning. The data were analyzed thematically. The results highlight how community-level norms reinforce gender inequalities in decision-making and underpin beliefs to not limit men's number of children. Religious norms and polygamy practices were shown to influence attitudes towards family size and family planning, as well as shape relationship dynamics related to fertility. Concerns about poverty were identified as a driver of shifting preferences and increasing acceptance of family planning. Results showcase how health system weaknesses limit women's access to family planning services, contribute to mistrust of health systems and drive misinformation about contraceptives, especially among men. This study underscores the need for multifaceted gender transformative interventions to increase women's fertility autonomy. This study also highlights health system strengthening, religious leader endorsement and male engagement as approaches to increase women's autonomous use of family planning.

Adipose-derived mesenchymal stem cells-derived exosomes containing nano-pearl powder water-soluble matrix promote osteogenic differentiation of MC3T3-E1 cells.
IF 2.8 4区 生物学 Q4 BIOCHEMISTRY & MOLECULAR BIOLOGY Pub Date : 2026-12-31 DOI: 10.1080/15476278.2026.2630547

Objective: To explore the synergistic effect of nano-pearl powder (NPP) and adipose-derived stem cell exosomes (ADSC-Exos) on the osteogenic potential of MC3T3-E1 cells.

Methods: The water-soluble matrix of NPP (NPP-WSM) was extracted via freeze-drying, and ADSC-Exos were isolated by ultracentrifugation. NPP-WSM was incorporated into ADSC-Exos through co-incubation to generate NPP-WSM-Exos. MC3T3-E1 cells were treated with NPP-WSM or NPP-WSM-Exos. Cell proliferation and migration were evaluated using CCK-8 and wound-healing assays, respectively. Osteogenic differentiation was assessed by Alizarin Red S staining and alkaline phosphatase (ALP) activity. The expression of osteogenesis-related genes (COL1A1, RUNX2, OCN, and OPN) was measured by qPCR and Western blotting. Transcriptome sequencing (RNA-seq) was conducted to identify signaling pathways activated by NPP-WSM-Exos.

Results: NPP-WSM-Exos displayed distinct exosome morphology and biomarkers, confirming their successful preparation. Significantly, NPP-WSM-Exos enhanced the viability of MC3T3-E1 cells compared to NPP-WSM alone and upregulated the expression of osteogenic genes, including COL1A1, RUNX2, OCN, and OPN, at both the transcriptional and translational levels. Additionally, NPP-WSM-Exos strongly promoted mineralization, as evidenced by the increased calcification observed through Alizarin Red S staining, and elevated alkaline phosphatase (ALP) activity, indicating excellent potential for osteogenic differentiation. Transcriptome sequencing showed that NPP-WSM-Exos significantly enhanced the PI3K/AKT pathway in MC3T3-E1 cells, while protein level detection indicated that NPP-WSM-Exos could increase AKT phosphorylation levels and inhibit GSK3β activity to improve osteogenic efficiency.

Conclusion: The use of adipose-derived stem cell exosomes to encapsulate NPP-WSM can increase the utilization of WSM, promote the proliferation of MC3T3-E1, and enhance the osteogenic differentiation ability.

Gut microbiota and hypertension: role of exercise training.
IF 3.5 4区 医学 Q3 PERIPHERAL VASCULAR DISEASE Pub Date : 2026-12-31 DOI: 10.1080/10641963.2025.2608905

Regular exercise training can significantly improve the gut environment and influence the metabolic activity of the gut microbiota. These changes promote the production of beneficial metabolites, which may modulate blood pressure regulation through multiple mechanisms. The beneficial microbial species including Faecalibacterium prausnitzii, Bifidobacterium spp., Lactobacillus spp., Roseburia spp.,and Bacteroides spp. These beneficial microbes produce various metabolites during metabolism, including short-chain fatty acids, vitamins, lactic acid, bileacids, and gamma-aminobutyric acid. These metabolites are not only essential for maintaining gut health but also positively influence hypertension by modulating the nervous system, immune system, and improving metabolic function. This review aims to elucidate the complex interactions among exercise training, gut microbiota, and hypertension.

Acute phenylcapsaicin supplementation improves CrossFit® performance: a randomized, triple-blind, placebo-controlled crossover trial.
IF 3.9 2区 医学 Q1 NUTRITION & DIETETICS Pub Date : 2026-12-31 DOI: 10.1080/15502783.2026.2615274

Background: Phenylcapsaicin (PC) may enhance high-intensity exercise performance by reducing perceived exertion, increasing mechanical output, and limiting muscle damage, making it potentially beneficial for CrossFit® (CF) athletes.

Objective: To examine the acute effects of PC supplementation on performance, recovery, and metabolic responses during a CF session.

Methods: This study had a randomized, triple-blind, placebo-controlled crossover design. Fifty CF-trained athletes (50% women) ingested either 2.5 mg of PC or a placebo (PLA) 45 minutes before a standardized CF session, including a warm-up, weightlifting block, and WOD. Delayed-onset muscle soreness (DOMS) was assessed 24- and 48-hours post-session. Countermovement jump (CMJ) was evaluated pre- and post-session, while a deep squat at 70% 1RM was performed post-session. Throughout the session, heart rate, capillary lactate, rating of perceived exertion (RPE), and perceived recovery status (PRS) were monitored.

Results: Compared to PLA, PC improved squat performance at 70% 1RM in both load and repetitions (P ≤ 0.035), attenuated the decline in CMJ (P < 0.001), and maintained weightlifting performance over time (P interaction = 0.011), with significantly higher load in round 9 (P = 0.030). No differences were observed during the WOD (P interaction ≥ 0.826). DOMS was significantly lower in the PC group at both 24 h and 48 h (P = 0.030), while no group differences were found for lactate, RPE, PRS, or heart rate (P interaction ≥ 0.340). Analysis stratified by sex showed that PC reduced CMJ loss in men (P = 0.043) and increased squat load in women (P = 0.021).

Conclusion: In conclusion, acute PC supplementation enhances performance and recovery in CF athletes.

Dengue modelling and policy integration: A necessary step toward sustainable epidemic control.
IF 2.1 3区 医学 Q2 PUBLIC, ENVIRONMENTAL & OCCUPATIONAL HEALTH Pub Date : 2026-12-31 DOI: 10.1080/17441692.2026.2631237
Bilateral hypertensive retinopathy (grade 4): Case report and review of the literature on intravitreal injection anti-VEGF therapy.
IF 3.5 4区 医学 Q3 PERIPHERAL VASCULAR DISEASE Pub Date : 2026-12-31 DOI: 10.1080/10641963.2025.2604831

Objective: To introduce bilateral hypertensive retinopathy (HR) (grade 4) complicated with macular edema (ME) patients with binocular intravitreal injection of anti-vascular endothelial growth factor (anti-VEGF) treatment.

Methods: Three cases of hypertensive retinopathy were observed. The fundus examination was consistent with HR (grade 4). The patients received anti-VEGF intraocular injection.

Results: The patient's ME and optic nerve edema were significantly reduced, visual acuity was significantly improved, and a case of secondary choroidal neovascularization (CNV) in the fundus of HR (grade 4) was also noted.

Conclusions: The use of intravitreal anti-VEGF agents in stage IV hypertensive retinopathy appears satisfactory but not perfect. In severe cases with vitreous hemorrhage, early injection avoids vitrectomy.

A dual diacylglycerol kinase (DGK) alpha/zeta inhibitor augments the activity of human tumor infiltrating lymphocytes in in vivo and ex vivo models.
IF 6.5 2区 医学 Q1 IMMUNOLOGY Pub Date : 2026-12-31 DOI: 10.1080/2162402X.2025.2608439

Endogenous or adoptively transferred tumor-infiltrating lymphocytes (TILs) often lose their functional capacity due to the activation of intrinsic inhibitory pathways, which then limits their ability to control tumor growth. In this study, we examined the effects of blocking a key intracellular inhibitory enzyme, diacylglycerol kinase (DGK) in human T cells, using a novel inhibitor (DGKi) called INCB165451 that blocks both DGKα and DGKζ, the two primary DGK isoenzymes that negatively regulate T cells through the diacylglycerol (DAG) signaling pathway. We first evaluated the effects of the DGKi in enhancing the efficacy of adoptive human T cell transfer in a non-small cell lung cancer (NSCLC) mouse model and found that the DGKi significantly potentiated anti-tumor efficacy through multiple mechanisms, including increased intratumoral T cell infiltration, upregulation of genes associated with inflammatory responses, and reduction of TIL hypofunction, as evidenced by enhanced cytokine production following ex vivo anti-CD3 antibody stimulation. We next studied the effects of the DGKi on human TILs derived from tumor digests or studied in situ in precision-cut tumor slices of both head and neck cancer and NSCLC patient samples. After stimulation of the TILs with anti-CD3 antibodies, we found that the DGKi enhanced gene and protein expression of proinflammatory cytokines and chemokines. Finally, we demonstrated that the DGKi could augment T cell activation in human tumor slices that were stimulated by an anti-EGFR/anti-CD3 bispecific T cell engager (BiTE). These data demonstrate strong activity of the DGKi in human TILs and highlight promising potential avenues for clinical translation.

Differential expression of mitomiRs in pancreatic islet cells associated with maternal protein restriction.
IF 1.7 4区 医学 Q3 ENDOCRINOLOGY & METABOLISM Pub Date : 2026-12-31 DOI: 10.1080/19382014.2025.2610590

Objective: Mitochondria are central to energy production and cellular homeostasis. Beyond importing diverse RNAs, they also encode hundreds of their own non-coding RNAs, contributing to a complex and dynamic RNA landscape. Early-life nutritional insults, such as fetal and postnatal protein deficiency, can impair mitochondrial function and increase the long-term diabetes risk. However, the mitochondrial non-coding transcriptome of pancreatic islets, particularly its responsiveness to nutritional cues, remains largely unexplored.

Methods: We performed RNA sequencing to profile small non-coding RNAs in mitochondrial fractions of islet cells from offspring of rats exposed to low-protein (LP) or control diets during gestation and lactation and employed mRNA-miRNA network analysis to explore the potential regulatory roles of differentially expressed mitomiRs in LP-exposed pups.

Results: Protein deficiency during gestation and lactation led to a profound remodeling of the small non-coding RNA landscape in whole islets, with microRNAs and piRNAs showing the most pronounced changes. In mitochondrial fractions, LP exposure resulted in a striking shift in microRNA composition, with 33 mitomiRs detected in control islets versus 23 in LP-exposed rats, and only 5 shared between groups. Notably, ten mitomiRs were selectively depleted from the cytosol and enriched in mitochondria of LP-exposed islets. Amongst these, miR-10a-5p and miR-126a-5p, are predicted to target genes involved in mitochondrial metabolism and structural organization.

Conclusion: Early-life protein restriction triggers a highly selective reorganization of the mitomiR landscape in pancreatic islets. The identified mitomiRs may serve as regulators of mitochondrial function and intracellular signaling, potentially influencing β-cell metabolic coupling and contributing to diabetes susceptibility.

PI3Kγ inhibition drives M1 macrophage differentiation and synergizes with PD-L1 blockade to improve survival in poorly immunogenic head and neck squamous cell carcinoma.
IF 4.6 4区 医学 Q2 ONCOLOGY Pub Date : 2026-12-31 DOI: 10.1080/15384047.2025.2600701

Background: Head and neck squamous cell carcinoma (HNSCC) is the sixth most common cancer globally with high mortality rates, highlighting the urgent need for novel therapeutic strategies. We investigated the efficacy of combining phosphoinositide 3-kinase gamma (PI3Kγ) inhibition with programmed death-ligand 1 (PD-L1) blockade in a poorly immunogenic HNSCC model.

Materials and methods: Mouse bone marrow-derived macrophages (BMDMs) were differentiated and polarized in the presence or absence of the PI3Kγ inhibitor IPI-549 or culture supernatants from MOC2 cells treated with or without IPI-549. MOC2 cells were orthotopically injected into C57BL/6 mice, and treated with anti-PD-L1, IPI-549, combined anti-PD-L1 and IPI-549 or vehicle control. Tumor burden, survival, and immunological responses were evaluated.

Results and conclusion: Dual inhibition of PI3Kγ (using IPI-549) and PD-L1 demonstrated nearly significant reduction in primary tumor burden and significantly increased survival compared to single or control treatments. PI3Kγ inhibition promoted macrophage differentiation toward an antitumoral M1 phenotype. In the bone marrow, dual therapy significantly increased MHC-II expression across various myeloid cell subsets and effectively normalized myelopoiesis. Notably, combination therapy increased CD8+ T-cell infiltration into tumors while decreasing T-cell exhaustion marker (LAG-3, CTLA-4, and TIM-3) and protumoral cytokine (IL-4). Combined PI3Kγ and PD-L1 inhibition offers a promising strategy for treating poorly immunogenic HNSCC by simultaneously targeting multiple immunosuppressive mechanisms. These findings provide a strong rationale for combining PI3Kγ and PD-L1 inhibitors as a therapeutic strategy for poorly immunogenic HNSCC, potentially improving clinical outcomes for patients.

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